Nice report Jason and Mojo. That Velodyne DLS-5000R is a real departure for Velo and I suspect just a made in China sub labelled Velodyne for sale through the big box stores. Products like this just hurt the brand. I've never liked subs with big unflared slot vents because of all the noise inherent with that type of port. In addition FR is anything but linear, in fact its more humped than even the old SVS models. Worse, its THD doesn't decline to less than 10% until 30hz and above. No surprise it sounds so bad.

Judging by your and other reports, the EP350v3 appears to be a real winner especially at that price. It may not go as deep as a EP600 but a pair of 350v3 would be an excellent alternative and perhaps better than a single 600 because of all the additional benefits you get from dual subs. I have to find a pair to audition.

I'll have to do more testing. Not sure I would go as far to say the 350 does a better job than my 600, maybe mojo's sub is defective. Keep in mind, I do believe his 600 has the new firmware with the brickwall higher. Mojo, didn't you tell me once via PM your previous 600 performed better than your new altered one?

My twin 350v3's in Ebony are killer and they continue to suprise me on punch and how low they will go. I'll keep testing and going back/forth between the two.

Ok, I was thinking you had said you disabled the original amp when trying to upgrade yourself. And the replacement was revised at the factory with initial feedback as being worse than your original amp.

The replacement amp that Axiom sent me had the original firmware. The only thing that is different in my 600 now is the driver. I have the driver that is made with dull rather than shiny aluminum. The dull aluminum doesn't go as well with my beaver . I replaced the driver due to noise at lower frequencies with high SPLs. The noise is no longer there.